Crypto Archivi - Page 3 of 4

The cipher of Aeneas

In the sacred texts, in particular in the Old Testament, three main secret writings can be found: the Atbash, the Albam and the Atbah. The first cipher code, Atbash, was...

The Qubit: introduction to quantum algorithms

27 Dec

Introduction Sometimes, in popular settings, the quantum computer is labeled as a particular “incredibly faster” computer. Although this consideration is not entirely far from reality, it is necessary to make...

History of cryptography: the scitala

29 Nov

The scitala or scital (in ancient Greek: σκυτάλη, skytàlē, “stick”) is traditionally considered an encrypted and secret message that was sent by the ephors, the five supreme magistrates of Sparta,...

The Quantum Computing

26 Nov

Introduction At the end of the last century, the field of experimental physics was revolutionized by the technological development of classical computers. Among the numerous innovations, the possibility of computer...

Homomorphic Encryption: (im)practical innovation?

07 Jul

Homomorphic encryption (HE) is an innovative type of cryptography that allows the performance of computations on encrypted data, obtaining results consistent with those that would be obtained by performing the...

E2EE: features of an “invincible” system

21 Jun

End-to-End encryption (E2EE) is an application of asymmetric encryption systems. This means that in a communication, only the recipient and the sender, its two ends, can decrypt and read the...

Cryptography: what is it and its uses

21 Apr

Cryptography, or crypto, refers to the technique of securing information and communications through codes. By doing so, only those people you send information holding the decoding key to can understand...

CrypTO: Telsy’s contribution in the organization of the CrypTO national web conference of Turin’s Polytechnic

08 Mar

The Polytechnic of Turin has organized with the collaboration of Telsy, the CrypTO national web conference. It will take place on the 27th and 28th of May 2021. The organizers are Danilo...

Agnes Meyer Driscoll: women in cryptanalysis

01 Mar

Agnes Meyer Driscoll was a leading cryptanalyst working for American defense agencies between WW1 and the Cold War’s early years. She started her career in the US Navy by enlisting...

Enigma: a story about cipher mishandling

24 Feb

Enigma was a portable cipher machine producing a polyalphabetic substitution cipher. It had up to 5 rotor scramblers. Many versions included many sets of plugboard connections, which allowed a further swap of a...